WCIF information if a Taiwanese person is still alive or already dead?

I only have an ID number and a name to start with. Helping someone who is looking for her long lost father. Thanks!

Did she already check his household registration?
If not, with a proof of her father-child relationship, she can get his household registration to see if his death is recorded.

Unfortunately, the friend is not in Taiwan. Is it something that can be checked by a proxy (me)?

Yes. With authenticated documents and authenticated letter of attorney, I think you can.

ok, thanks! if no easier solution is presented, then we’ll go the red tape way.